Hood for pneumatic stackers.



G. B-NELSON.

HOOD FOR PNEUMATIOSTACKERS.

APPLICATION FILED JAN. 28, 1914.

1,201,333. Patented Oct. 17,1916.

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HOOD FOR PNEUMATIC STACKERS.

APPLICATION FILED JAN. 28, 1914.

1 ,201 ,33 3 Patented Oct. 17, 1916.

SSHEETS-SHEET 2- G. B. NELSON.

HOOD FOR PNEUMATIC STACKERS.

APPLICATION map JAN. 28, m4.

Patented Oct. 17, 1916.

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GEORGEB. NELSON, 0F REDFIELD, IOWA.

' HOOD FOR PNEUMATIC STACKERS.

Specification of LettersPatent.

fApplication filed January 28,1914. Serial No. 814,869.

To all whom it may concern -Be it .known thatI, GEORGE E. NELSON, a citizen of the United States, residing at Redfield, in the county of Dallas and State of Iowa, haveinvented a'new and useful Improvement hoodto different sized conveyer tubes.

A further object is to provide improved means .for'easily revolving the hood on the stacker.

.A further ObJGCt is to provlde an improved deflector at the discharge end of the hood and means for operating'the same.

The above features and other capabilities .and advantages .of the invention will become .apparent .from 1 the detailed descrlption of the accompanying drawings showingone. embodiment of the invention where Figure'l is a side elevational view showing a hood revol'ubly mountedon a conveyer tube. the-same and-showing indotted lines the Fig. 2 is a top plan =view of position of the'ho'od at rightangles to its normalposition. Fig. 3 is a cross section taken on the line 3-3 of Fig. 2. and-looking in the direction of-the arrows. Fig. 1 is a cross section taken on the line 14: of Fig.

2 and looking in the direction indicated by the arrows. Fig. 515 a detalled sectional view taken onthe line 5-5 of-Fig. 3 showing the-connection between the hood and conveyer tube.

Inthe COIlStIllCtlODa shown in the accompanying drawings, the conveyer tube 10 is illustratedhaving ahead 11 around its peripherynearits outlet end, to which end is secured the hood, by meanspresently to be described. :The hood comprises a rectangular body portion (except that'it'hasno bottom) having anend provided with a central opening.

Rigidly securedto the outer-end of the -.b0Cly .pOXtiO11 ofthe hood, is' aframe-lQ. con

structed of angle irons which extend across the top and down the-sides thereof to the top piece of which is hin-gedly mounted, by

any su1table meanssuch as the hinge'12, a

deflector 13, which deflector comprises a series of curved tines 1 1, .and'two side members 15, bymeans of which the chaff and dust and other small particles are'blown be tween the tines while the straw-maybe de: flected downwardly to the stack. WVhen-the hood is used on a tube conveying straw into 'the barn or other inclosure, it'is desirable tohave acovering over the tines to prevent thechafl or dust from being blown out' wardly throughout the inclosure, therefore,

I provide a curved shield 15 which is slidably a'nd 'detachably mountedbetween the sides 1% and on the outside ofthe tines 13 which shield. can'be withdrawn by simply removing .the bolts 16 at the lower end of the deflector.

For swinging the deflector about its hinges 12 for thepu-rpose of deflecting the material at different angles from the hood, I

.provide means operablefrom the machine to which the conveyor tube is attached,

which comprises a cable-17 extending back to the machine and having at its outer end Patented Oct. 17, 1916. i

a suitable sheave, over which passes a suit-"' able cablehavingtwo brancheslS and 18, which branches pass backwardly and outwardly over -sheaves 19 thence over the sheaves 20 in the end of the arms 21, thence to the lugs 22 to which the ends are secured.

i The arms'21'are slidably mounted in suitable keepers'secured to the sides of the hood and are pivotally connected at their outer end by any suitable means, such as the'bolt shown,to-braces23-which braces are rigidly secured to the sides 15 of the deflector and are provided at their lower ends with an' outwardlyaextending' flange 23 designed to engage the side pieces of the frame 12 to limit'the inward and downward movement of the deflector. It will be seen that by pulling the cable leading to'the machine, the deflector as a whole including its side-members, may" be swung about the hinges 12 by means of which the blastimay be deflected at various angles from th e hood. By'positioningthe arm "21 sothat its inner end is substantially even with the lower side of the sheaves 19, the-upper-side of which is substantiallyeven with the upper surface of the conveyer tube, the deflector can be efficiently and easily raised or swung about the hinges 12. I V

For automatically returning the deflector to its normal position, I provide coil springs 24L which are secured at one end to the side member 15 of the deflector near the upper edge thereof and are detachably connected at their opposite ends to suitable openings in the side pieces of the frame 12, which side pieces are provided with a series of openings in alinement so that the springs 24 may be adjusted to the proper tension.

To revolubly mount the hood on a conveyer tube, a collar member is inserted within the opening in the end 27 of the hood, which collar member is of such construction that a standard size hood, without in any way being changed, may be fitted to the various sizes of the conveyer tubes. The collar comprises a tubular member 25 having its outer end bent outwardly to form a radially extending flange 26, which flange travels between the end 27 of the body of the hood and a series of flange plates 28 secured on the inside of the end 27 of the hood near the opening therein, one of which plates is shown in Fig. 5. Hingedly mounted on the inner side of the tubular member 25, are a series of strips 29, which are provided near their free ends with a bead adapted to fit over and engage the bead 11 on the conveyer tube 10. Secured to each strip, intermediate its ends, is a plate 30 which extends from the bead in said strip forward to near the inner edge of the said tubular member 25. These plates 30 are of sufficient extent so that they will project one over another to form a complete annular collar.

To bind the strips 29 onto the conveyer tube, each strip has rigidly secured thereto, a lug 31, provided with openings in alinement to receive suitable tie rods 32, one end of each of said lugs being connected to the next succeeding lug by means of one of said tie rods, while the opposite end of said lug is connected to the preceding lug as best shown in Fig. 4. A nut is secured on each of these rods whereby the strips 29 may be tightly bound on the end of the conveyer tube by simply adjusting the nuts on said rods. With this arrangement, it is obvious that the strips may be adjusted to fit various sized tubes. ranged in alinement, all torque or twisting action, which causes the collar 25 to bind in its connection with the hood, is eliminated, thus permitting the tubular member 25 to revolve freely in its'connection with the body portion of the hood. For additionally securing the strips 29 to the conveyer tube, the radially extending ends of said strips are provided with an opening to receive a suitable bolt 29 which bolt passes through By having said tie rods aran opening in the conveyer tube and thence through the opening in said strips and is provided on its outer end with an adjustable nut, by means of which the parts may be rigidly secured together.

To revolve the hood, a pair of ropes or cables are provided, one 33 going to the right and the other 34 going to the left of the conveyer tube, each passing over a sheave or pulley mounted on the inner end 27 of the hood near the outer and upper edge thereof, thence downwardly where they are connected with lugs 35-35 secured by any suitable means to the tubular member 25; As the tubular member 25 is stationary when mounted on a conveyer tube, it will be seen that by pulling on the cable 34:, the left side of the hood will be lowered and the right side raised, and by pulling on the cable 33, the operation is just reversed. By mounting the sheaves and pulleys near the outer and upperedge of the hood 27, substantially a straight pull. is afforded to the lugs 35, thus eliminating any binding friction, and lessening the energy for revolving the hood.

What I claim as new and desire to secure by Letters Patent is:

1. In a device of the class described, a collar, a hood revolubly mounted on said collar, strips rigidly connected to said collar and adapted to be connected with a conveyer tube and adjustable means for securing said strips to said conveyer tube whereby the binding action between said collar and said hood is eliminated.

2. In combination with a discharge tube of a pneumatic stacker, a collar, a hood revolubly mounted on said collar, flexible strips connected with said collar and adapted to be connected with said discharge tube, and adjustable means for securing said strips to said discharge tube, said means comprising a lug secured to each strip provided with openings in alinement and adjustable tie rods passing through said openings and connecting said lugs one with another.

3. In a device of the class described, a collar, a hood revolubly mounted on said collar and fastening means hingedly connected with said collar whereby said fastening means is adapted to be connected to and receive conveyer tubes differing in diameter.

4. In combination with a discharge tube of a pneumatic stacker, a collar, a hood revolubly mounted on said collar, strips hingedly connected at one end to said collar and adapted to be connected at the opposite end to said discharge tube, plates overlapping one another and secured to said strips and adjustable means for securing said strips to said discharge tube.

5. In combination with a discharge tube of a pneumatic stacker provided at its outlet end with a bead, a collar, a hood revolubly mounted on said collar, strips hingedly connected to said collar and provided near their outer ends with a groove adapted to fit over the bead on said discharge tube, plates overlapping one another and secured to said strips, said plates being positioned between the bead on said discharge tube and the outer end of said collar, and adjustable means for securing said pieces to said discharge tube.

6. In combination with a discharge tube of a pneumatic stacker, a collar, strips attached to said collar and adapted to be connected with said discharge tube, adjustable means for securing said strips on said discharge tube, said means comprising a lug provided with openings in alinement secured to each strip and adjustable tie rods passing through said openings and connecting one lug with another.

7. In combination with a discharge tube of a pneumatic stacker, a hood connected with said discharge tube, a deflector hingedly mounted on said hood, said deflector consisting of a series of curved tines and two side members, said tines and side members being adapted to swing together about said hinges, means for swinging said deflector about said hinges and means for limiting the downward and inward movement of said deflector comprising a flange on one of the side members.

8. In combination with a discharge tube of a pneumatic stacker, a hood connected with said discharge tube, a deflector hingedly mounted on said hood, said deflector consisting of a series of curved tines and two side members, said tines and side members being adapted to swing together about said hinges, and a detachable and removable adjustable shield adapted to fit over and completely cover said tines.

In witness whereof, I hereunto subscribe my name to this specification in the presence of two witnesses.

GEORGE E. NELSON.

W'itnesses:

J or. SPILLERS, F. R. CoMBs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

